Glossary Papakupu

Explanations of abbreviations and acronyms.

All 1 A B C D E F G H I J K L M N O P Q R S T U V W Y

Radio altimeter: An electronic device capable of measuring the height of an aircraft above the terrain immediately below it. The radio (or radar) altimeter is independent from the barometric altimeter system. The radio altimeter does not use air pressure. It measures the height above the surface below using a radio signal reflected from that surface. The manually set reference height with the height setting bug, activates an alert when the aircraft descends below that setting.

Rail Protection Officer (RPO): A qualified person with overall responsibility for protecting workers in a work area on the railway.

Rate of turn: A turn accomplished at 3° per second (180° per minute), and the maximum recommended rate of turn when flying with sole reference to instruments. Also known as a standard turn

Ratings (gliding): Glider pilot ratings, such as an instructor or passenger rating, issued by GNZ under a delegated authority from the CAA

Reamer bolts: A type of fastener designed for use in high-torque systems. A reamer bolt has a smooth, cylindrical shank that fits tightly into a corresponding hole, ensuring minimal movement and high precision.

Recency bias: Recency bias is the tendency to weigh recent events more heavily than earlier events.

Rectifier: An electrical device that converts alternating current into direct current by allowing a current to flow through it in one direction only.

Regulator: A machine used to shape and distribute the ballast after it has been tamped.

Remote aerodrome: Any structure or any area of land or water used for take-off or landing

Rip line: This collapses the vent, allowing hot air to escape and causing a rapid deflation of the envelope. The term rip line is used in this report as it is the common ballooning term for the control that rapidly deflates the balloon on landing. The rip line was solid red in colour to differentiate it from other control lines.

RNAV: Area navigation allowing aircraft to fly any desired path within coverage

RNP: Required Navigation Performance specifying accuracy and integrity requirements

ROO: Regional Operations Officer (three in total – Northern, Central and Southern)

Rotor overspeed: Is when the rotor speed exceeds the stipulated maximum operational limit.

Rudder: The rudder is located on the vertical fin (tail) and cause an aeroplane to yaw left or right about its vertical axis.

Rudder palm: A horizontal coupling plate that connects the rudder blade to the rudder stock.

Rudder pintle: A metal pin attached to the rudder used as a pivot point, allowing the rudder to turn.

Rudder stock: A solid shaft that connects the rudder blade to the ship’s internal steering mechanism.

Run-on landing: A landing with significant forward motion, as opposed to a landing from a hover. After touchdown, forward motion is maintained until ground friction brings the helicopter to a halt. It is generally used when there is insufficient power to sustain a hover.